98. 桿上變壓器掛耳之間距,何者為誤?
(A)25kVA,300mm
(B)50kVA,600m m
(C)75kVA,600mm
(D)100kVA,600mm 。

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統計: A(1), B(7), C(1), D(3), E(0) #2876818